Thermal Energy

A barefoot student steps on a hot concrete surface. Most of the heat transferred to the student’s skin by this contact is by the process of—

• convection
• conduction
• vaporization
• radiation

An aluminum plate and a plastic plate have been in the freezer all night. When you remove them the next morning,

• the plates have the same temperature.

• the plastic plate has a higher temperature.

• the plastic plate has a lower temperature.

• the aluminum plate has a lower temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

You put a metal spoon and a wooden spoon into a pot of boiling water. One will become too hot to touch. Why?

• Metals conduct heat better than wood.

• Wood conducts heat better than metals.

• Metals are insulators.

• Wood is more dense than metal.

Which of the following are kinds of heat transfer.

• Conduction
• Convection
• Radiation
• All of the above

Tags

NGSS.HS-PS3-4

Which material is the best conductor of heat?

• glass
• styrofoam
• metal
• wood

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3

Conduction can only occur between two objects when –

• one object is less dense than the other.
• both objects are in physical contact with each other.
• one of the objects is made of a metal.
• both objects are exactly the same temperature.

Tags

NGSS.MS-PS3-4

Why does a metal lawn chair get hot in the sun when the grass sitting in the same sunlight remains cool to the touch?

• Heat travels easily through plants but not metals.
• Heat travels easily through both plants and metals.
• Heat travels easily through metal objects but not through plants.

Tags

NGSS.MS-PS1-4

Which of the following is an example of conduction?

• Solar energy warming a room.
• Heat rising from the coils of a stove.
• Hot air drying a wet towel.
• Heat moving from a clothes iron to a shirt.

Tags

NGSS.MS-PS1-4

Which of the following are kinds of heat transfer.

• Conduction
• Convection
• Radiation
• All of the above

Heat will always transfer from the ___________ object to the ________ object.

• The hottest object to the coolest object.

• The coolest object to the hottest object.

• The solid object to the liquid object.

• The liquid object to the solid object.

Tags

NGSS.MS-PS1-4